Artificial floating island for common terns to nest

Abstract

The present application belongs to the technical field of artificial floating island, and particularly relates to an artificial floating island for common tern nesting; the artificial floating island for common tern nesting comprises a foam board, a bamboo pole is fixedly connected to the bottom of the foam board, and a circular groove is formed in the bamboo pole and located at the corner of the foam board; the artificial floating island for common tern nesting further comprises a buoyancy control unit; the present application is characterized in that a plurality of buoyancy control units are uniformly arranged around the foam board, each buoyancy control unit is provided with a No. 1 air bag, the buoyancy of the foam board is changed by changing whether the No. 1 air bag is inflated or not, so as to change the draft of the floating island and adjust the inclination of the floating island, and the risk of sinking and tilting of the floating island is reduced.

Description

Technical Field

[0001] This invention belongs to the field of artificial floating island technology, specifically an artificial floating island for common terns to nest on. Background Technology

[0002] Bird breeding monitoring has revealed that terrestrial mammals such as weasels prey on bird eggs or chicks on breeding islets where birds nest; severe water level fluctuations caused by summer rainstorms can flood bird nests; these factors have a significant impact on birds breeding on the ground, leading to breeding failures for some birds; how to improve the breeding success rate of birds is a new problem facing bird conservation; providing artificial floating islands is a good way to solve this problem.

[0003] During the use of artificial floating islands, factors such as rain, tern landings, and tern breeding may increase the load on the artificial floating islands, leading to problems such as sinking and increased draft, which may affect the effectiveness of the artificial floating islands and, in severe cases, may cause the artificial floating islands to sink. Furthermore, the terns may be unevenly distributed on the floating islands, which may cause the floating islands to tilt, and in severe cases, may also cause the floating islands to sink.

[0004] In view of this, the present invention solves the above-mentioned technical problems by proposing an artificial floating island for common terns to nest. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention provides an artificial floating island for common terns to nest, by changing the buoyancy of the foam board to alter the draft and tilt of the floating island.

[0006] The technical solution adopted by this invention to solve its technical problem is: an artificial floating island for common terns to nest, comprising: a foam board, with bamboo poles fixedly connected to the bottom of the foam board, and circular grooves opened on the bamboo poles at the four corners of the foam board; the artificial floating island for common terns to nest further comprises: a buoyancy control unit, with a plurality of buoyancy control units evenly arranged around the foam board, each of the buoyancy control units being equipped with an airbag, each of the buoyancy control units changing whether the airbag is inflated or not, thereby changing the buoyancy of the foam board, thereby changing the draft of the floating island and adjusting the tilt of the floating island; reducing the risk of the floating island sinking or tilting;

[0007] In this application, bamboo poles from marine debris are used as the platform's framework, with foam boards forming the main body of the floating platform. The platform is primarily designed for birds such as the Avocet, Black-headed Gull, and Common Tern. Since these birds typically breed in flocks during their breeding season, they require a large breeding habitat area. The floating island is designed to be 10m in length and width, constructed from lightweight, water-resistant foam boards (1m*1m*20cm) in a dark brown color similar to soil. Gaps in the foam boards facilitate drainage. The bottom framework is constructed from bamboo poles. A 5m*5m floating island is initially built, and the bottom is supported by six 6m long bamboo poles (which can be joined together if needed), and two 5m long bamboo poles. The foam board is connected by poles and covered with non-woven fabric. To prevent soil erosion, bundles of reeds or bamboo strips are tied around the top layer of the foam board as baffles. To ensure the stability of the floating island, four circular grooves with a diameter of 7cm are left around the bamboo poles. Smoothed bamboo poles (6cm in diameter) are inserted to fix the foam board. Each bamboo pole is 3.5m long and 1m is inserted into the ground, allowing the foam board to slide up and down with the water level without shifting left and right. For avocets and common terns, 10cm of bare soil is laid on top of the non-woven fabric. For black-headed gulls, 10cm of soil is laid on top of the non-woven fabric and Suaeda salsa is transplanted. Specimens of Charadriiformes birds can be placed on the floating island to attract birds to nest there.

[0008] Preferably, the buoyancy control unit includes: a base, on which the side wall of the foam board is fixedly connected; a cavity is formed at the bottom of the base, and an airbag is fixedly connected inside the cavity; a fitting groove is formed at the top of the base; a cylinder, on which a cylinder is fixedly connected at the top of the base and around the fitting groove; an electromagnet is fixedly connected at the top inner part of the cylinder; a spring is fixedly connected at the bottom of the electromagnet; a piston block is fixedly connected at the other end of the spring; a permanent magnet is disposed inside the piston block; the piston block is slidably connected to the inside of the cylinder; when the electromagnet is energized, the piston block moves away from the electromagnet; and a tube is fixedly connected inside the base, which connects the inside of the cylinder to the inside of the airbag.

[0009] Preferably, a control block is fixedly connected to one side of the base, an insulating plate is provided on the side wall of the control block, and two conductive rods are fixedly installed on the insulating plate. When the two conductive rods are submerged in water, the first electromagnet is energized.

[0010] When the floating island sinks or tilts, the two conductive rods on all or part of the buoyancy control unit are submerged in the water. This energizes the electromagnet on the corresponding buoyancy control unit, causing the piston block to move away from the electromagnet and press the air in the first cylinder into the first airbag. The corresponding airbag expands, increasing buoyancy. As a result, the buoyancy at the connection between the foam board and the corresponding buoyancy control unit increases, causing it to be lifted and thus the floating island to move up or improve its tilt.

[0011] Preferably, the control block has a cavity, a telescopic rod is fixedly connected to the top of the cavity, a connecting plate is fixedly connected to the bottom of the telescopic rod, and a long groove is formed on the side wall of the control block. The connecting plate passes through the long groove and is fixedly connected to the insulating plate.

[0012] Preferably, a stepped groove is formed inside the control block near the first cylinder, and the stepped groove is adjacent to the first cavity; a first plate is slidably connected in the stepped groove, a second spring is fixedly connected between the first plate and the end of the stepped groove, a first block is fixedly connected to the top of the first plate near the first cylinder, a third spring is fixedly connected to the other end of the first block, and a pin is fixedly connected to the other end of the third spring; a slot is formed on the side wall of the piston block corresponding to the pin, and the pin passes through the control block and the side wall of the base to enter the fitting groove and insert into the slot; two metal contacts are fixedly connected to the side of the connecting plate facing the stepped groove, and the two metal contacts are electrically connected to the two conductive rods respectively; two metal strips are fixedly arranged on the first plate corresponding to the two metal contacts; the control circuit of the first electromagnet is connected to the two metal strips; when the connecting plate moves to the position of the first plate, the two metal contacts contact the two metal strips respectively; if the two conductive rods are submerged in water at this time, the control circuit of the first electromagnet is turned on, and the first electromagnet is energized.

[0013] The extension and retraction of the No. 1 telescopic rod is used to adjust the height of the two conductive rods, thereby adjusting the degree to which the floating island sinks or tilts. At this point, the No. 1 airbag inflates and takes effect. When the No. 1 telescopic rod is retracted to its maximum extent, the metal contact point does not contact the No. 1 plate or the metal strip on it. In this state, the conductive rod does not provide control and can be used to deactivate the buoyancy control unit when not needed. At this time, the No. 2 spring is in its original position, and the pin does not enter the engagement groove. When the No. 1 telescopic rod extends, the metal contact point contacts the No. 1 plate... When the metal strip is in operation, plate number one is compressed, spring number two is compressed, and the pin enters the engagement groove. When the conductive rod is submerged in water, electromagnet number one is energized, piston block enters the engagement groove, pin is inserted into the slot, spring number three contracts and then returns to its original position, and the pin acts to fix the piston block. When airbag number one needs to be reset and buoyancy removed, telescopic rod number one retracts to its shortest length, plate number one resets, pin is pulled out, piston block resets under the action of spring number one, airbag number one contracts, thus airbag number one is reset and buoyancy control unit is reset.

[0014] Preferably, elastic membranes are fixedly provided at the upper and lower ends of the connecting plate and the long groove;

[0015] The elastic membrane can be a rubber membrane or a louvered membrane, used to prevent water and impurities from entering the control block through the long groove.

[0016] Preferably, the end of the pin near the mating groove is provided with a bevel;

[0017] The inclined surface, as shown in the figure, is similar to a locking tongue. When the piston block moves down, the pin can be smoothly pressed into the slot, preventing the piston block from moving up and thus achieving a fixing effect.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The artificial floating island for common terns to nest, as described in this invention, comprises several buoyancy control units evenly arranged around a foam board. Each buoyancy control unit is equipped with an airbag. Each buoyancy control unit changes the buoyancy of the foam board by changing whether the airbag expands or not, thereby changing the draft of the floating island and adjusting its tilt; thus reducing the risk of the floating island sinking or tilting.

[0020] 2. The artificial floating island for common terns nesting, as described in this invention, when the floating island sinks or tilts, all or part of the two conductive rods on the buoyancy control unit are submerged in the water. Then, the first electromagnet on the corresponding buoyancy control unit is energized, the piston block moves away from the first electromagnet, and the air in the first cylinder is forced into the first airbag. The corresponding first airbag expands, increasing buoyancy. As a result, the buoyancy of the part where the foam board is connected to the corresponding buoyancy control unit increases, and it is raised, thereby causing the floating island to move up or improving the tilt. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is the three-dimensional representation of the present invention. Figure 1 ;

[0023] Figure 2 This is the three-dimensional representation of the present invention. Figure 2 ;

[0024] Figure 3 This is a top view of the present invention;

[0025] Figure 4 This is a perspective view of the buoyancy control unit of the present invention;

[0026] Figure 5 This is a partial perspective view of the buoyancy control unit of the present invention;

[0027] Figure 6 This is a cross-sectional view of the buoyancy control unit of the present invention;

[0028] Figure 7 yes Figure 6 Enlarged view of a portion at point A;

[0029] In the diagram: 1. Foam board; 11. Bamboo pole; 12. Circular groove; 2. Buoyancy control unit; 21. Airbag No. 1; 22. Base; 23. Fitting groove; 24. Cylinder No. 1; 25. Electromagnet No. 1; 26. Spring No. 1; 27. Piston block; 28. Tube No. 1; 3. Control block; 31. Insulating board; 32. Conductive rod; 4. Cavity No. 1; 41. Telescopic rod No. 1; 42. Connecting plate; 43. Long groove; 5. Stepped groove; 51. Plate No. 1; 52. Spring No. 2; 53. Block No. 1; 54. Spring No. 3; 55. Pin; 56. Slot; 57. Metal contact; 6. Elastic membrane. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] like Figure 1 , Figure 2 , Figure 3 As shown, the artificial floating island for common terns to nest in, as described in this invention, includes: a foam board 1, with bamboo poles 11 fixedly connected to the bottom of the foam board 1, and circular grooves 12 opened on the bamboo poles 11 at the four corners of the foam board 1; the artificial floating island for common terns to nest in also includes: a buoyancy control unit 2, with several buoyancy control units 2 evenly arranged around the foam board 1, each buoyancy control unit 2 having a first airbag 21, each buoyancy control unit 2 changing the buoyancy of the foam board 1 by changing whether the first airbag 21 is inflated or not, thereby changing the draft of the floating island and adjusting the tilt of the floating island;

[0032] During operation, the weight of the artificial floating island may increase due to rain, tern landings, and tern breeding, leading to problems such as sinking and increased draft, affecting its effectiveness and potentially causing it to sink. Furthermore, uneven distribution of terns on the island could cause it to tilt, again potentially leading to sinking. Therefore, several buoyancy control units 2 are evenly distributed around the foam board 1. Each buoyancy control unit 2 is equipped with an airbag 21. By changing the expansion or de-inflation of the airbag 21, each buoyancy control unit 2 alters the buoyancy of the foam board 1, thereby changing the draft and tilt of the floating island, reducing the risk of sinking and tilting.

[0033] In this application, bamboo poles 11 from marine debris are used as the framework of a floating platform, with foam boards 1 as the main body. The platform is primarily designed for birds such as the Avocet, Black-headed Gull, and Common Tern. Since these birds typically breed in flocks during their breeding season, they require a large breeding habitat area. The floating island is designed to be 10m in length and width, constructed from lightweight, water-resistant foam boards 1. The foam boards 1 (1m*1m*20cm) are a dark brown color similar to the soil, and gaps in the foam boards facilitate drainage. The bottom framework is constructed from bamboo poles 11. A 5m*5m floating island is initially built, and the bottom uses six 6m long bamboo poles 11 (which can be joined if necessary) and two 5m long bamboo poles. The foam board 1 is covered with non-woven fabric and connected by poles 11. To prevent soil erosion, bundles of reeds or bamboo strips are tied around the top layer of the foam board 1 as baffles. To ensure the stability of the floating island, four circular grooves 12 with a diameter of 7cm are left around the bamboo poles. The bamboo poles 11 (with a diameter of 6cm) are inserted and fixed in place. Each bamboo pole 11 is 3.5m long and 1m is inserted into the ground, so that the foam board 1 can slide up and down with the water level without shifting left and right. For avocets and common terns, 10cm of bare soil is laid on top of the non-woven fabric. For black-headed gulls, 10cm of soil is laid on top of the non-woven fabric and Suaeda salsa is transplanted. Specimens of Charadriiformes birds can be placed on the floating island to attract birds to nest on it.

[0034] As a specific embodiment of the present invention, such as Figure 1 , Figure 4 , Figure 6 As shown, the buoyancy control unit 2 includes: a base 22, which is fixedly connected to the side wall of the foam board 1; a cavity is opened at the bottom of the base 22, and an airbag 21 is fixedly connected inside the cavity; a fitting groove 23 is opened at the top of the base 22; a cylinder 24, which is fixedly connected to the top of the base 22 and around the fitting groove 23; an electromagnet 25 is fixedly connected to the top of the cylinder 24; a spring 26 is fixedly connected to the bottom of the electromagnet 25; a piston block 27 is fixedly connected to the other end of the spring 26; a permanent magnet is installed inside the piston block 27; the piston block 27 is slidably connected to the inside of the cylinder 24; when the electromagnet 25 is energized, the piston block 27 moves away from the electromagnet 25; a tube 28 is fixedly connected inside the base 22; and the tube 28 connects the inside of the cylinder 24 to the inside of the airbag 21.

[0035] like Figure 4 As shown, a control block 3 is fixedly connected to one side of the base 22. An insulating plate 31 is provided on the side wall of the control block 3. Two conductive rods 32 are fixedly installed on the insulating plate 31. When the two conductive rods 32 are submerged in water, the first electromagnet 25 is energized.

[0036] During operation, when the floating island sinks or tilts, the two conductive rods 32 on all or part of the buoyancy control unit 2 are submerged in the water. Then, the first electromagnet 25 on the corresponding buoyancy control unit 2 is energized, and the piston block 27 moves away from the first electromagnet 25, forcing the air in the first cylinder 24 into the first airbag 21. The corresponding first airbag 21 expands, increasing buoyancy. As a result, the buoyancy of the part where the foam board 1 is connected to the corresponding buoyancy control unit 2 increases, and it is lifted, thereby causing the floating island to move up or improving the tilt.

[0037] As a specific embodiment of the present invention, such as Figure 6 , Figure 7 As shown, a cavity 4 is opened inside the control block 3. A telescopic rod 41 is fixedly connected to the top of the cavity 4. A connecting plate 42 is fixedly connected to the bottom of the telescopic rod 41. A long groove 43 is opened on the side wall of the control block 3. The connecting plate 42 passes through the long groove 43 and is fixedly connected to the insulating plate 31.

[0038] like Figure 5 , Figure 7 As shown, a stepped groove 5 is provided inside the control block 3 near the first cylinder 24, and the stepped groove 5 is adjacent to the first cavity 4; a first plate 51 is slidably connected inside the stepped groove 5, and a second spring 52 is fixed between the first plate 51 and the end of the stepped groove 5; a first block 53 is fixedly connected to the top of the first plate 51 near the first cylinder 24, and a third spring 54 is fixedly connected to the other end of the first block 53; a pin 55 is fixedly connected to the other end of the third spring 54; a slot 56 is provided on the side wall of the piston block 27 corresponding to the pin 55, and the pin 55 can penetrate the control block 3 and the side wall of the base 22 to enter the slot. The connecting plate 42 is inserted into the slot 56 and the groove 23 is joined. Two metal contacts 57 are fixedly connected to the side of the connecting plate 42 facing the stepped groove 5. The two metal contacts 57 are electrically connected to the two conductive rods 32 respectively. Two metal strips are fixedly installed on the first plate 51 at the positions corresponding to the two metal contacts 57. The control circuit of the first electromagnet 25 is connected to the two metal strips. When the connecting plate 42 moves to the position of the first plate 51, the two metal contacts 57 contact the two metal strips respectively. If the two conductive rods 32 are submerged in water, the control circuit of the first electromagnet 25 is turned on and the first electromagnet 25 is energized.

[0039] During operation, the extension and retraction of the first telescopic rod 41 is used to adjust the height of the two conductive rods 32, thereby adjusting the degree to which the floating island sinks or tilts. At this point, the first airbag 21 inflates and functions. When the first telescopic rod 41 is shortened to its maximum extent, the metal contact 57 does not contact the first plate 51 or the metal strip on it. In this state, the conductive rods 32 do not provide control, allowing the buoyancy control unit 2 to stop operating when not needed. At this time, the second spring 52 is in its original position, and the pin 55 does not enter the engagement groove 23. When the first telescopic rod 41 extends until the metal contact 57 contacts the metal strip on the first plate 51... When plate 51 is squeezed, spring 52 is compressed, and pin 55 enters the engagement groove 23, electromagnet 25 is energized when conductive rod 32 is submerged in water, piston block 27 enters engagement groove 23, pin 55 is inserted into slot 56, spring 54 retracts and then returns to its original position, and pin 55 fixes piston block 27. When airbag 21 needs to be reset and buoyancy removed, telescopic rod 41 retracts to its shortest position, plate 51 resets, pin 55 is pulled out, piston block 27 resets under the action of spring 26, airbag 21 retracts, thus airbag 21 is reset and buoyancy control unit 2 is reset.

[0040] As a specific embodiment of the present invention, such as Figure 4 , Figure 7 As shown, elastic membranes 6 are fixedly installed at the upper and lower ends of the connecting plate 42 and the long groove 43;

[0041] During operation, the elastic membrane 6 can be a rubber membrane or a louvered membrane to prevent water and impurities from entering the control block 3 through the long groove 43.

[0042] As a specific embodiment of the present invention, such as Figure 7 As shown, the end of the pin 55 near the engaging groove 23 is provided with a bevel;

[0043] During operation, the inclined surface is set as shown in the figure, similar to a locking tongue. When the piston block 27 moves down, the pin 55 can be smoothly pressed and enter the slot 56, preventing the piston block 27 from moving up and thus playing a fixing role.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention without departing from the spirit and scope of the present invention. Any modifications or equivalent substitutions should be covered within the protection scope of the claims of the present invention.

Claims

1. An artificial floating island for common terns to nest, comprising: Foam board (1), the bottom of the foam board (1) is fixedly connected to a bamboo pole (11), and the bamboo pole (11) is provided with round grooves (12) at the four corners of the foam board (1); Its characteristic is that the artificial floating island used for common tern nesting also includes: Buoyancy control unit (2): Several buoyancy control units (2) are evenly arranged around the foam board (1). Each buoyancy control unit (2) is equipped with a No. 1 airbag (21). Each buoyancy control unit (2) changes the buoyancy of the foam board (1) by changing whether the No. 1 airbag (21) is inflated or not, thereby changing the draft of the floating island and adjusting the tilt of the floating island. The buoyancy control unit (2) includes: The base (22) is fixedly connected to the side wall of the foam board (1). The bottom of the base (22) is provided with a cavity, and an airbag (21) is fixedly connected inside the cavity. The top of the base (22) is provided with a fitting groove (23). A first cylinder (24) is fixedly connected to the top of the base (22) and around the fitting groove (23). A first electromagnet (25) is fixedly connected to the top of the first cylinder (24). A first spring (26) is fixedly connected to the bottom of the first electromagnet (25). A piston block (27) is fixedly connected to the other end of the first spring (26). A permanent magnet is provided inside the piston block (27). The piston block (27) is slidably connected to the inside of the first cylinder (24). When the first electromagnet (25) is energized, the piston block (27) moves away from the first electromagnet (25). A first tube (28) is fixedly connected inside the base (22). The first tube (28) connects the inside of the first cylinder (24) to the inside of the first airbag (21). A control block (3) is fixedly connected to one side of the base (22). An insulating plate (31) is provided on the side wall of the control block (3). Two conductive rods (32) are fixedly provided on the insulating plate (31). When the two conductive rods (32) are submerged in water, the first electromagnet (25) is energized. The control block (3) has a cavity (4) inside. A telescopic rod (41) is fixedly connected to the top of the cavity (4). A connecting plate (42) is fixedly connected to the bottom of the telescopic rod (41). A long groove (43) is provided on the side wall of the control block (3). The connecting plate (42) passes through the long groove (43) and is fixedly connected to the insulating plate (31). A stepped groove (5) is provided inside the control block (3) and near the first cylinder (24). The stepped groove (5) is adjacent to the first cavity (4). A first plate (51) is slidably connected inside the stepped groove (5). A second spring (52) is fixed between the first plate (51) and the end of the stepped groove (5). A block (53) is fixed to the top of the first plate (51) near the first cylinder (24). A third spring (54) is fixed to the other end of the first block (53). A pin (55) is fixed to the other end of the third spring (54). A slot (56) is provided on the side wall of the piston block (27) corresponding to the pin (55). The pin (55) passes through the control block (3) and the base (2). 2) The side wall can enter the fitting groove (23) and be inserted into the slot (56); the connecting plate (42) has two metal contacts (57) fixedly connected to the side facing the stepped groove (5), and the two metal contacts (57) are electrically connected to the two conductive rods (32) respectively. Two metal strips are fixedly provided on the first plate (51) at the positions corresponding to the two metal contacts (57); the control circuit of the first electromagnet (25) is connected to the two metal strips; when the connecting plate (42) moves to the position of the first plate (51), the two metal contacts (57) contact the two metal strips respectively. If the two conductive rods (32) are submerged in water, the control circuit of the first electromagnet (25) is turned on, and the first electromagnet (25) is energized.

2. The artificial floating island for common terns to nest according to claim 1, characterized in that: An elastic membrane (6) is fixedly provided at the upper and lower ends of the connecting plate (42) and the long groove (43).

3. The artificial floating island for common terns to nest according to claim 2, characterized in that: The end of the pin (55) near the fitting groove (23) is provided with a bevel.

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